Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1093261Generated: October 30, 2026

Urea → HCID 57424552, compound

https://huagongshe.com/reaction/1093261

Reaction equation

Participants

RoleNameHCIDCharge
ReactantUreaHCID 1176—
ReactantAnilineHCID 6115—
Reactant2-[(5-Nitropyridin-2-yl)oxy]ethan-1-olHCID 587937—
ReactantHCID 22061157HCID 22061157—
Reactantethyl 4-(4-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-6-(4-(3-ethylureido)phenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylateHCID 25262323—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
ProductHCID 57424552HCID 57424552—

Reaction Steps

A urea formation procedure similar to that used for the synthesis of ethyl 4-(4-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-6-(4-(3-ethylureido)phenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylate is used, utilizing 2-(5-aminopyridin-2-yloxy)ethanol (prepared by the reduction of 2-(5-nitropyridin-2-yloxy)ethanol in ethyl acetate and methanol with palladium on carbon and hydrogen gas) as the aniline component. (5%, MS=531.2 (M+H))

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08129371B2
Source datasetuspto-grants-2012_03
ORD IDord-f4bc4410f34a4d05956948733dc4b471
Source noteuspto-grants-2012_03